I have used xuggle library in my project to trans code the video from mp4 to flv. I have used slf4j libraries also to support logging
xuggle library
mp4 to flv
slf4j libraries
SBT solution stated above did not work for me. What worked for me is excluding slf4j-log4j12
slf4j-log4j12
//dependencies with exclusions libraryDependencies ++= Seq( //depencies ).map(_.exclude("org.slf4j","slf4j-log4j12"))